[Costco] Squatty Potty - 2pk
You'll have to look it up if you don't know what it is (and watch the videos). Cheaper than buying it from Amazon, but I'm sure you can find knockoffs on eBay for less.
For what it is, it's a good deal (relative to others selling the same branded product), but not really a good deal ($20 EA for what's effectively a rounded footstool) -- if you get what I'm saying.
Hope someone finds this deal of use! I know some people swear by this product.